Pros 7-Zip not only can compress the file into 7z format, but also compress the file into a common ZIP format, with ZIP format the compression speed faster, and the compatibility is better. In RAR format, 7-Zip can also gives the compressed file a password to protect important files, no one can open this file without password. 7-Zip can compress multiple files or the entire folder into a file, sometime this is convenient for manage your files.
